<?php
/*
 *  $Id: Process.php 1080 2007-02-10 18:17:08Z jwage $
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * This software consists of voluntary contributions made by many individuals
 * and is licensed under the LGPL. For more information, see
 * <http://www.doctrine-project.org>.
 */

/**
 * Doctrine_Migration_Process
 *
 * @package     Doctrine
 * @subpackage  Migration
 * @license     http://www.opensource.org/licenses/lgpl-license.php LGPL
 * @link        www.doctrine-project.org
 * @since       1.0
 * @version     $Revision: 1080 $
 * @author      Jonathan H. Wage <jwage@mac.com>
 */
class Doctrine_Migration_Process
{
	protected
	$_migration;

	public function __construct(Doctrine_Migration $migration)
	{
		$this->_migration = $migration;
	}

	public function getConnection()
	{
		return $this->_migration->getConnection();
	}

	/**
	 * Process a created table change
	 *
	 * @param string $table Table definition
	 * @return void
	 */
	public function processCreatedTable(array $table)
	{
		$this->getConnection()->export->createTable($table['tableName'], $table['fields'], $table['options']);
	}

	/**
	 * Process a dropped table change
	 *
	 * @param array $table Table definition
	 * @return void
	 */
	public function processDroppedTable(array $table)
	{
		$this->getConnection()->export->dropTable($table['tableName']);
	}

	/**
	 * Process a renamed table change
	 *
	 * @param array $table Renamed table definition
	 * @return void
	 */
	public function processRenamedTable(array $table)
	{
		$this->getConnection()->export->alterTable($table['oldTableName'], array('name' => $table['newTableName']));
	}

	/**
	 * Process a created column change
	 *
	 * @param array $column Column definition
	 * @return void
	 */
	public function processCreatedColumn(array $column)
	{
		$this->getConnection()->export->alterTable($column['tableName'], array('add' => array($column['columnName'] => $column)));
	}

	/**
	 * Process a dropped column change
	 *
	 * @param array $column Column definition
	 * @return void
	 */
	public function processDroppedColumn(array $column)
	{
		$this->getConnection()->export->alterTable($column['tableName'], array('remove' => array($column['columnName'] => array())));
	}

	/**
	 * Process a renamed column change
	 *
	 * @param array $column Column definition
	 * @return void
	 */
	public function processRenamedColumn(array $column)
	{
		$columnList = $this->getConnection()->import->listTableColumns($column['tableName']);
		if (isset($columnList[$column['oldColumnName']])) {
			$this->getConnection()->export->alterTable($column['tableName'], array('rename' => array($column['oldColumnName'] => array('name' => $column['newColumnName'], 'definition' => $columnList[$column['oldColumnName']]))));
		}
	}

	/**
	 * Process a changed column change
	 *
	 * @param array $column Changed column definition
	 * @return void
	 */
	public function processChangedColumn(array $column)
	{
		$options = array();
		$options = $column['options'];
		$options['type'] = $column['type'];

		$this->getConnection()->export->alterTable($column['tableName'], array('change' => array($column['columnName'] => array('definition' => $options))));
	}

	/**
	 * Process a created index change
	 *
	 * @param array $index Index definition
	 * @return void
	 */
	public function processCreatedIndex(array $index)
	{
		$this->getConnection()->export->createIndex($index['tableName'], $index['indexName'], $index['definition']);
	}

	/**
	 * Process a dropped index change
	 *
	 * @param array $index Index definition
	 * @return void
	 */
	public function processDroppedIndex(array $index)
	{
		$this->getConnection()->export->dropIndex($index['tableName'], $index['indexName']);
	}

	/**
	 * Process a created constraint change
	 *
	 * @param array $constraint Constraint definition
	 * @return void
	 */
	public function processCreatedConstraint(array $constraint)
	{
		$this->getConnection()->export->createConstraint($constraint['tableName'], $constraint['constraintName'], $constraint['definition']);
	}

	/**
	 * Process a dropped constraint change
	 *
	 * @param array $constraint Constraint definition
	 * @return void
	 */
	public function processDroppedConstraint(array $constraint)
	{
		$this->getConnection()->export->dropConstraint($constraint['tableName'], $constraint['constraintName'], isset($constraint['definition']['primary']) && $constraint['definition']['primary']);
	}

	/**
	 * Process a created foreign key change
	 *
	 * @param array $foreignKey Foreign key definition
	 * @return void
	 */
	public function processCreatedForeignKey(array $foreignKey)
	{
		$this->getConnection()->export->createForeignKey($foreignKey['tableName'], $foreignKey['definition']);
	}

	/**
	 * Process a dropped foreign key change
	 *
	 * @param array $foreignKey
	 * @return void
	 */
	public function processDroppedForeignKey(array $foreignKey)
	{
		$this->getConnection()->export->dropForeignKey($foreignKey['tableName'], $foreignKey['definition']['name']);
	}
}